Paul Lowrance wrote:
Terry Blanton wrote:
Sean McCarthy dropped this term again today:
http://www.steorn.com/forum/comments.php?DiscussionID=57711&page=1#Item_17
http://snipurl.com/1jgm1
about how his technology works. Isn't this the same as hysteresis?
Terry
I was taught it's different than hysteresis. Magnetic viscosity is
frequency related. It's simply magnetic lag. The electron spins in the
material don't change instantly when the applied field changes.
Example, say an applied field is saturating the core to 99.9%. Then
within 1 ns the applied field is completely removed. Most magnetic
cores cannot react that fast. So it might take 100 ns for the core to
change from %99.9 saturation to 10% saturation.
Regards,
Paul Lowrance
but that's the mechanism of magnetic refigeration. If it's that simple
the people doing magnetic refrigeration will have a fit.
- Re: [Vo]:Magnetic Viscosity Wesley Bruce
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